AMD Radeon Instinct MI355X vs OCPC RTX 3080 LHR

Comparison of AMD Radeon Instinct MI355X with 288 GB HBM3e and 16,384 cores vs OCPC RTX 3080 LHR with 12 GB GDDR6X and 8,960 cores.

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Performance Rating

AMD Radeon Instinct MI355X outperforms OCPC RTX 3080 LHR by 469.9% in the overall GPU ARK performance rating

A100 A100
H200 H200
MI325X MI325X

AMD Radeon Instinct MI355X

93.5

AMD Radeon Instinct MI355X

93.5
RX 7900 XTX RX 7900 XTX
MI250 MI250
Instinct MI300X Instinct MI300X

OCPC RTX 3080 LHR

16.4

OCPC RTX 3080 LHR

16.4

Contents:

Memory ML Performance Compute Power Architecture & Compatibility ML Software Support Clocks & Performance Power Consumption Rendering Benchmarks Additional

Memory

Memory Size

🔥 +2,300% 288 ГБ
12 ГБ

Memory Type

HBM3e GDDR6X

Memory Bandwidth

🔥 8.19 TB/s
912.4 GB/s

Memory Bus Width

8,192 бит 384 бит

ML Performance

FP16 (Half Precision)

🔥 +1,953% 629.1 TFLOPS
30.64 TFLOPS

BF16 (Brain Float)

No No

TF32 (TensorFloat)

No No

Compute Power

FP32 (Single Precision)

🔥 +157% 78.64 TFLOPS
30.64 TFLOPS

FP64 (Double Precision)

🔥 +16,324% 78.64 TFLOPS
0.4788 TFLOPS

CUDA Cores

🔥 +83% 16,384
8,960

RT Cores

No
🔥 70

Architecture & Compatibility

GPU Architecture

CDNA 4.0 Ampere

SM (Streaming Multiprocessor)

No
🔥 70

PCIe Version

PCIe 5.0 x16 PCIe 4.0 x16

ML Software Support

CUDA Version

No 8.6

Clocks & Performance

Base Clock

1,000
🔥 +26% 1,260

Boost Clock

🔥 +40% 2,400
1,710

Memory Clock

🔥 +68% 2,000
1,188

Power Consumption

TDP/TGP

1400 W
🔥 -75% 350 W

Recommended PSU

1800 W
🔥 -58% 750 W

Power Connector

None 2x 8-pin

Rendering

Texture Units (TMU)

🔥 +266% 1,024
280

ROP

No
🔥 70

L2 Cache

16 MB
🔥 6 MB

Benchmarks

MLPerf, llama2-70b-99.9 (mxfp4)

10 129 tokens/s

MLPerf, llama3.1-405b (mxfp4)

252.4 tokens/s

Additional

Slots

OAM Module Triple-slot

Release Date

July 15, 2025 Jan. 11, 2022

Display Outputs

No outputs
1x HDMI 2.1
3x DisplayPort 1.4a

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